If you have ever wanted to build an underwater camera cheap this is a great project to reference. The Shark Cam uses a tiny security camera, some PVC pipe, duct tape and some other odds and ends. “Last year while shark fishing off the Dumbarton Pier and recording the catch on a 20 year old VHS camera I had an idea. I thought of how cool it would be to
It seems like everything in this hectic world is going digital. This Wireless Router with Analogue Utilization Meter project takes digital information and presents it in an analog form. Video after the jump. “There are a number of ways to find out how much bandwidth is being used. This being the first pass at a digital to analogue conversion of the utilisation, I opted for simply using the uplink LED
Guido Socher build this Ethernet Weather Station project that uses an AVR microcontroller to process data from weather sensors. Software and schematics are provided. “Using an add-on card to the already existing avr ethernet board we build a weather station. That is a weather station with a build-in webserver. My original plan was to have sensors for temperature, air pressure and wind. I started a prototype and it worked very
This is an interesting LEGO rubber band gun, all it needs now is to be mounted onto the USB Rocket Launcher base and let the fun begin! Link removed at request of creator. “540 rubberbands per minute! An awesome motorized chaingun! The best rubber-band lego gun after the buddyskate’s mini-gun. This chaingun uses a different shooting style. No wheel needed!”
There has been quite a few temperature devices featured here in the past. This temperature logger is nice since it uses one of my favorite temperature sensing chips, the DS18B20. This sensor is digital and does not need any calibration. When I make my next batch of home brew beer there will definitely be a DS18B20 floating in it. Or if I have some extra DS1822 devices from the fish
Japala sent in his Dremel Foot Pedal Mod that allows you to control your Dremel power using your foot. Video after the jump. “For me personally having two hands free to operate when carving is a definite plus. One hand can be used to hold the object while other hand can handle the tool. So where would one need the third arm? Dremel’s, Ferm’s, Proxxon’s rotary tools have one thing
Here is a simple design for a DIY metal detector that uses a beat frequency oscillator. “BFO ( beat frequency oscillator ) metal detectors use two oscillators, each of which produces a radio frequency. One of these oscillators uses a coil of wire that we call the search loop. The second oscillator uses a much smaller coil of wire, and is usually inside the control box and is called the
